diff --git a/src/php/tests/generated_code/GeneratedCodeWithCallbackTest.php b/src/php/tests/generated_code/GeneratedCodeWithCallbackTest.php
index 6cda1e17021..9ec95375e91 100644
--- a/src/php/tests/generated_code/GeneratedCodeWithCallbackTest.php
+++ b/src/php/tests/generated_code/GeneratedCodeWithCallbackTest.php
@@ -33,7 +33,7 @@
  */
 require 'AbstractGeneratedCodeTest.php';
 
-class GeneratedCodeWithAuthTest extends AbstractGeneratedCodeTest {
+class GeneratedCodeWithCallbackTest extends AbstractGeneratedCodeTest {
   public static function setUpBeforeClass() {
     self::$client = new math\MathClient(new Grpc\BaseStub(
         getenv('GRPC_TEST_HOST'), ['update_metadata' =>